The collection of Forty Hadith compiled by Imam Nawawi (Imam al-Yahya bin Sharaf an-Nawawi) has been widely studied in traditional Arabic circles of learning and continues to be one of the basic subjects taught in Islamic courses throughout the world today.

This particular collection contains not only the actual ahadith (Arabic + English), as well English commentary by Imam Nawawi himself, as well as scholars who came after him.